polarization

polarization

Pages: 1 2 [next]

• A 5 elements Vee log-yagi for 10m - 5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals
  [ Hits: 4609 | Votes: 11 | Rating: 7.82 ]

• The Cycloid Dipole Antenna - A 2 meter antenna made of copper tubes, offering circular polarization
  [ Hits: 1939 | Votes: 15 | Rating: 7.2 ]

• Quadrifilar Helix antenna for 436 MHz - This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB.
  [ Hits: 3896 | Votes: 4 | Rating: 4.5 ]

• Helical Feed Antennas - Helical antennas have long been popular in applications from VHF to microwaves requiring circular polarization, since they have the unique property of naturally providing circularly polarized radiation. Paul Wade W1GHZ
  [ Hits: 1918 | Votes: 2 | Rating: 3 ]

• The full-wave loop antenna - These omnidirectional antennas offer Horizontal polarization, and about 2.1 dbd of gain. They are much quieter than a dipole or a vertical, have a broader bandwidth and will usually out perform a dipole antenna.
  [ Hits: 5052 | Votes: 4 | Rating: 6.5 ]

• The Basics of Patch Antennas - This article explores the basic concepts of patch antennas. Topics include principles of operation, impedance matching, radiation pattern, circular polarization, bandwidth, efficiency, alternative feed types, stacked patches and higher mode behavior.
  [ Hits: 805 | Votes: 1 | Rating: 9 ]
• Microstrip Patch Antennas - Article about the microstrip patch antennas, and in particular the rectangular, single-polarization microstrip antennas, commonly abbreviated MSA.
  [ Hits: 259 | Votes: 2 | Rating: 8.5 ]

• Quad or Loop antenna - Information about quad and loop antennas, matching tips, differences on polarization and impedence by PA0FRI
  [ Hits: 920 | Votes: 3 | Rating: 4.33 ]
• Polarization, lines of force - While polarisation may seem insignificant compared with other considerations in setting up a communications system, choosing the right type can make significant improvement in performance.
  [ Hits: 526 | Votes: 0 | Rating: 0 ]
• Basics of antennas - The current, the voltage, the impedance, the bandwidth, the polarization, and how the earth influences the famous radiation pattern.
  [ Hits: 701 | Votes: 0 | Rating: 0 ]
• Antenna Diversity - Single antenna with multiple polarization for diversity, diveristy receivers and propagation effects on signal polarization
  [ Hits: 411 | Votes: 0 | Rating: 0 ]

• Cross-Yagi antennas - For two purposes a Cross-Yagi can be useful Satellite work or if you need both vertical and horizontal polarization for terrestrial contacts
  [ Hits: 3299 | Votes: 6 | Rating: 7.67 ]
• X-QUAD Antennas - The X-Quad is an improved development of the well-known multi-element quad. Switchable polarization, high gain 2 m and 70 cm antenna
  [ Hits: 1307 | Votes: 5 | Rating: 5.6 ]
• The Skew-Planar Wheel Antenna - This is a very useful aerial design,forgotten for 40 years. This antenna offer a low omnidirectional pattern and has circular polarization. Can be used as a beacon antenna and simulations are for U-VHF and upper
  [ Hits: 608 | Votes: 3 | Rating: 4 ]
• Duoband ultra portable yagi - Tape measurement yagi. The longest part is 530 mm, easy fit to your backpack. Very easy and fast deploy. Great for SOTA and portable operation. Can be used in horizontal or vertical polarization. Based on DK7ZB design
  [ Hits: 627 | Votes: 6 | Rating: 6.17 ]

• Dawicom - Manufacture of microwave directional, omni directional, sector and multisector antennas with horizontal polarization for ISM band 2,4 GHz
  [ Hits: 805 | Votes: 0 | Rating: 0 ]

• Using MT65 - MAP65, a panoramic, polarization-matching receiver for JT65 by K1JT
  [ Hits: 559 | Votes: 0 | Rating: 0 ]

• MAP65 - MAP65 works together with the Linrad software. The Linrad/MAP65 combination implements a wideband, polarization-matching receiver for the JT65B protocol.
  [ Hits: 501 | Votes: 1 | Rating: 9 ]

• Polarization Rotator for EME - 2m EME Polarization Rotator for Yagi antennas
  [ Hits: 435 | Votes: 0 | Rating: 0 ]

• Remote Control of Mast Mounted Equipment - This article presents a method of controlling preamps, antenna switching and polarization switching remotely without the use of control cables.
  [ Hits: 1652 | Votes: 1 | Rating: 10 ]

Pages: 1 2 [next]